Merge ServiceHost xUnit test project into dev. (#5)

* Setup standard src, test folder structure.  Add unit test project.

* Actually stage the deletes.  Update .gitignore

src/ServiceHost/LanguageServer/ServerCapabilities.cs

@@ -0,0 +1,63 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+namespace Microsoft.SqlTools.EditorServices.Protocol.LanguageServer
+{
+    public class ServerCapabilities
+    {
+        public TextDocumentSyncKind? TextDocumentSync { get; set; }
+
+        public bool? HoverProvider { get; set; }
+
+        public CompletionOptions CompletionProvider { get; set; }
+
+        public SignatureHelpOptions SignatureHelpProvider { get; set; }
+
+        public bool? DefinitionProvider { get; set; }
+
+        public bool? ReferencesProvider { get; set; }
+
+        public bool? DocumentHighlightProvider { get; set; }
+
+        public bool? DocumentSymbolProvider { get; set; }
+
+        public bool? WorkspaceSymbolProvider { get; set; }
+    }
+
+    /// <summary>
+    /// Defines the document synchronization strategies that a server may support.
+    /// </summary>
+    public enum TextDocumentSyncKind
+    {
+        /// <summary>
+        /// Indicates that documents should not be synced at all.
+        /// </summary>
+        None = 0,
+
+        /// <summary>
+        /// Indicates that document changes are always sent with the full content.
+        /// </summary>
+        Full,
+
+        /// <summary>
+        /// Indicates that document changes are sent as incremental changes after
+        /// the initial document content has been sent.
+        /// </summary>
+        Incremental
+    }
+
+    public class CompletionOptions
+    {
+        public bool? ResolveProvider { get; set; }
+
+        public string[] TriggerCharacters { get; set; }
+    }
+
+    public class SignatureHelpOptions
+    {
+        public string[] TriggerCharacters { get; set; }
+    }
+}
+